Does anyone have a VE and a JWT ecu that works?

98sr20ve · 05-07-2002, 10:06 PM

The title says it all. I asked this in another thread but I thought it would get more attention in a new thread. Please, no flaming JWT. I just want the facts. They tell me that have done several ecu's with no difficulties.

Steve

autoxer7 · 05-07-2002, 10:33 PM

I'd put a lot of weight on what Schumacher says. As I understand it he has drive-ability problems that he doesn't think are related to the Air/Fuel ratio. Sounds like the JWT ECU works okay? The bonus of him going to Toronto is he gets an ECU tuned especially for his setup.

Steve

skyliner · 05-07-2002, 11:38 PM

I'm also doing a VE swap, talked to Andreas about the stroked SR16. The last time I talked to him the headgasket was the hold up. Anyways I will be sending off my JWT to get the VE program, just to get the A/F close. If the ratios are off I might get an AFC

to fix any errors. I am kinda in the same boat you are , waiting to see what Jim finds out. I 'think' Andreas has the VE in impound commited to me, he said we'd do the stroked 1.6 or the 2.0 whichever he got ready first. I'd rather have the 1.6 for shear novelty,fresh bearings, and a bit more top end ,but we'll see. I'll be posting as I do the swap, so keep checking in. I already got my air flow adapter for a Frontier, so I'm ready to go.

Shoes59 · 05-08-2002, 08:41 AM

Quote:

Originally posted by autoxer7
I'd put a lot of weight on what Schumacher says. As I understand it he has drive-ability problems that he doesn't think are related to the Air/Fuel ratio. Sounds like the JWT ECU works okay? The bonus of him going to Toronto is he gets an ECU tuned especially for his setup.

Not knowing exactly what JWT does to the ECU's I can't say for sure that their VE program is OK. The data they pulled from flowing the VE injectors and MAF is good and they were able to nail the a/f ratios. The car runs great except for the surging issue at light to moderate load and being down on power a bit.

Does anyone know if JWT changes the timing maps or if they can even be changed on our ECU's? This is the only thing I can think of that might be causing the surging, low power condition because Chuck Nibanna experienced the same thing after plugging in his JWT unit.

Please, lets not jump to any conclusions or point fingers at anyone. With the exception of a few on the West coast who have the benefit of being in JWT's back yard we are in a gray area that needs to be defined. JWT is a fine company who have serviced (albeit at a high price) our community with a good product for many years. Perhaps a second opinion from a bonified expert is just whats needed to get us out of this quandry.

98sr20ve · 05-08-2002, 09:25 AM

Quote:

Originally posted by Shoes59

Does anyone know if JWT changes the timing maps or if they can even be changed on our ECU's? This is the only thing I can think of that might be causing the surging, low power condition because Chuck Nibanna experienced the same thing after plugging in his JWT unit.

Please, lets not jump to any conclusions or point fingers at anyone.

Jim I know for a fact that they change the timing on our ECU's. It has been stated in print on several occasions. From memory, when Mike K. motor was built into an 11:1 motor they had pinging across the board. Reduced timing across the board, The first f-max kit was stated to have specific timing for the motor and water injection, JWT turbo kit had pinging in one spot and they reduced timing in just that area.

Quote:

Originally posted by Shoes59

Please, lets not jump to any conclusions or point fingers at anyone.

Agree 100%. I really was hoping to hear from some west coast guys that this thing does really work right. They told me that they have tuned 6 or so locally.

Steve

CNibbana · 05-09-2002, 07:46 AM

I haven't a clue exactly what air/fuel changes they made but I do have difficulty believeing JWT has nailed the program. If I plug in my JWT ECU the car won't idle and it has NO power! Nada!

I can then plug in a stock ECU and the car runs great. Rich and still lacking 100% power, but no idle problems and it doesn't stall.

Quote:

Originally posted by Shoes59

Not knowing exactly what JWT does to the ECU's I can't say for sure that their VE program is OK. The data they pulled from flowing the VE injectors and MAF is good and they were able to nail the a/f ratios. The car runs great except for the surging issue at light to moderate load and being down on power a bit.

Shoes59 · 05-09-2002, 08:21 AM

Quote:

Originally posted by CNibbana
I haven't a clue exactly what air/fuel changes they made but I do have difficulty believeing JWT has nailed the program. If I plug in my JWT ECU the car won't idle and it has NO power! Nada!

I can then plug in a stock ECU and the car runs great. Rich and still lacking 100% power, but no idle problems and it doesn't stall.

Hi Chuck, I don't think JWT has nailed the entire program but based on the readings from a Nissan Consult and 5 dyno runs last weekend it appears mine doesn't have any a/f issues as was previously suspected. I don't seem to have the same problems as you cause my car runs fine with the exception of some surging at low to mid load and it's down a bit on power. It seems to idle fine and has never stalled. I think the issues I'm having are related to timing. I sent my ECU to this guy in Toronto with a dyno. He's going to poke around a bit and then we'll schedule a dyno tune in a couple weeks. I'll keep everyone posted.

JRios · 05-09-2002, 11:43 AM

Jim:

So how did you do in the Dyno?

spnx · 05-09-2002, 11:46 AM

He hasn't come up here yet. Be patient

I'm sure he'll post as soon as he gets the results.

Shoes59 · 05-09-2002, 11:54 AM

Actually James I had it on the dyno at Carlisle this past weekend but I never really posted numbers because the dyno was spitting out really low figures for everyone. Based on percentages and known hp figures for other stock cars, I was putting down just under 170 whp.

This is another reason why I'm looking forward to hooking up with Yoshio. I want real world dyno numbers using a 5 wire O2 set up and all the other wizardry this guy has to offer.

autoxer7 · 05-09-2002, 04:42 PM

Quote:

Originally posted by Shoes59
This is another reason why I'm looking forward to hooking up with Yoshio. I want real world dyno numbers using a 5 wire O2 set up and all the other wizardry this guy has to offer.

If things work out with Yoshio will the rest of us be able to send our ECUs to him and get your program? Or is he only able to make the changes at his shop?

Steve

dgerryts · 05-09-2002, 06:01 PM

Let Jim find out how he does with his car. Yoshio is very good but tunes to the specific vehicle on the dyno. And besides, he's only one guy doing this by himself with a young family.

dgerryts · 05-09-2002, 06:03 PM

I want you guys to remember that Yoshio is only one guy, working by himself. It would be very easy to swamp him with work. We've been using him for years and he has performed some minor miracles on our N/A race engine. He tunes each CAR individually on the dyno ie no mass programming. Every ecu is specific for the car.

Shoes59 · 05-09-2002, 06:53 PM

I spoke with Yoshio tonight and he said he can program a stock ECU to run a VE motor but dyno tuning is required for each application. The cost is in line with what JWT charges for an S3 program, the dyno time is extra. His chips or boards are different than JWT's so he cannot utilize the JWT unit, he must start from scratch with a stock ECU. Soon as I get my ECU back I'll pop it in, schedule an appointment and head up to Tornoto for a test and dyno tune with his ECU. I'll post results afterwards.

Please wait for my results before contacting Yoshio for ECU programming. Like others have said, he is a one man operation and tunes specifically for each application. It's not a one size fits all or plug and play type affair. He needs to use the dyno to fine tune the program for each car. If we start hitting him with calls his lead times will be longer than what we've ever seen with JWT.

sr20deoldie · 05-09-2002, 10:05 PM

jwt is also a one man operation when it comes to programming ecu's. i guess the point i'm making is it's up to the tuner to do it as business or hobby. maybe if he gets enough business doing tuning he may decide to run it as a business, which will be a good thing. if i was nissan i'd make the ecu open source and let it run on linux (which can be made to fit on a floppy) and flash rom it or even use a disk a la PS2, of course with agreement from the purchaser of custom programs. then we'll get a truly global, programmable tuner car.

autoxer7 · 05-10-2002, 04:45 PM

Quote:

Originally posted by Shoes59
Please wait for my results before contacting Yoshio for ECU programming.

I apologize for jumping the gun. Obviously if I had my druthers I'd like to get my ECU tuned on the dyno, be it with JWT or Yoshio. But considering I'm so far away from both I was trying to figure out if Yoshio would be willing to sell ECUs the same way JWT does. Sounds like he'd prefer not to and only tune the ECU on the dyno.

Steve

FastNX · 05-10-2002, 07:09 PM

let me know how this goes, living in brampton may have one advantage, finally.......

Shoes59 · 05-10-2002, 08:02 PM

Quote:

Originally posted by FastNX
let me know how this goes, living in brampton may have one advantage, finally.......

I'll be looking for a place to crash when I head up there. Got room?

Shoes59 · 05-10-2002, 08:09 PM

Quote:

Originally posted by dgerryts
I want you guys to remember that Yoshio is only one guy, working by himself. It would be very easy to swamp him with work. We've been using him for years and he has performed some minor miracles on our N/A race engine. He tunes each CAR individually on the dyno ie no mass programming. Every ecu is specific for the car.

David,

I think I met you at Shannonville a couple years ago. I was waiting for the Tornoto guys to run on the Fabi circuit only to leave during the monsoon that hit late afternoon. Is your NX all gutted inside with a custom aluminum dash and a colorful paint scheme?

FastNX · 05-11-2002, 01:25 AM

shoes 59 PM me